
public class A {
	public static int w=0;
	
	protected int a; 
	
	  void foo(B a) {
		System.out.print("foo A");
		
	  }
	  
	  protected void foo2 () {
		  
		  
	  }
	  
	  protected void foo3() {
		  
	  
	  }
	 
}
